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Andrei Ershov
in Russian
1981
Archive
The USSR Academy of Sciences
Decisions
1981
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Возр.
Убыв.
Decision,
11.12.1981
Decision,
25.06.1981
Decision,
18.06.1981
Decision,
09.04.1981
Decision,
20.03.1981
Decision,
19.03.1981
Decision,
29.01.1981
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